reflect information-driven and noise-induced volatilities. We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- efficient return ; macroeconomic announcements ; microstructure noise ; informational volatility …

examines how well exchange rate volatility explains movements in stock market returns. The model-based predictions are …

. Positive (negative) news have significant positive (negative) effects on stock returns in all cases. Their volatility has a … significant impact on both stock returns and volatility; specifically, an increase in news volatility is always associated with a …

follows. Positive (negative) news have significant positive (negative) effects on stock returns in all cases. Their volatility … has a significant impact on both stock returns and volatility; specifically, an increase in news volatility is always …

reflect information-driven and noise-induced volatilities.We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- effcient return ; macroeconomic announcements ; microstructure noise ; informational volatility …

direction of company-specific news. Information-implied reactions in returns, volatility as well as liquidity demand and supply … London Stock Exchange (LSE), we find market-wide robust news-dependent responses in volatility and trading volume. However … shown. -- Firm-specific News ; News Sentiment ; High-frequency Data ; Volatility ; Liquidity ; Abnormal Returns …

reflect information-driven and noise-induced volatilities. We find that all volatility components reveal distinct dynamics and … significantly declines thereafter. Moreover, news-affected responses in all volatility components are influenced by order flow … imbalances. -- Efficient Return ; Macroeconomic Announcements ; Microstructure Noise ; Informational Volatility …